102
•
Calibration
8. Send “
CJC Offset Calibration $(Addr)9(+0000)”
to set initial CJC offset
value to zero.
9. Repeat step 6, then proceed to step 10.
10. Send “
CJC Offset Calibration $(Addr)9(Counts)
” to correct the CJC offset
error.(counts is a 4 -characters with a sign + or -,range is 0000 to FFFF, each
count equals approximately 0.0153
°
C). (
F o r m o r e d e t a i l , p l e a s e r e f e r t h e
CJC Offset Calibration Command
).
11. Repeat procedure 7 to procedure 10 if the CJC value still does not conform
to the ambient temperature.